Device for preventing false fire-alarms



yimyzw/mm 2 2m QUIZ/1'1! a (No Model.)

B. JUNGERMAN.

DEVICE FOR PREVENTING EALsE FIRE ALARMS.

.068. Patented June 16, 1885.

\A/IEEEEEE Fries.

EDXVARD JUNGERMAN, OF GETTYSBURG, PENNSYLVANIA.

DEVICE FOR PREVENTING FALSE FIRE-ALARMS.

SPECIFICATION forming part of Letters Patent No.320,068, dated June 16,1885.

Application filed December 29, 1883.

T aZZ whom it may concern.-

Beitknown that I, ED\VARD JUNGERMAN, a citizen of the United States, and a resident of Gettysburg, in the county of Adams and State ofPennsylvania,haveinvented certain new and useful Improvements in Devices for Preventing False Fire-Alarms, of which the following is a specification.

My invention relates, especially, to devices employed in connection with fire-alarm boxes to prevent the sending out of false alarms by malicious or evil-disposed persons, and has for its object the provision of a device which may be employed with an ordinary alarm-box, and which will compel the sender out of an alarm to remain by the box until the arrival of the persons summoned by the alarm. To attain this end my invention consists, essentially, of a folding screen secured to a building or other support for an alarm-box in close proximity to said box, said screen bearing a key thereto.

In the drawings, Figure 1 is a view in elevation of a portion of the wall of a building whereon is located an alarmbox, my device being shown in its normal position. Fig. 2 is a plan view of the device as shown in Fig. 1, and Fig. 3 is a plan view with the canopy removed and the screen closed. Fig. 4 is an enlarged view showing one mode of arranging the key.

Like letters of reference, wherever they oc cur, indicate corresponding parts in all the figures.

A is the wall of a building to which an alarm-box, B, is secured.

G is a roof or canopy constructed of openwork metal or glazed, as preferred, and se cured to wall A above the alarm-box.

D are the leaves of a screen, made of suitable material, either solid or open work, so cured together by hinges E, said screen being securely affixed to the wall of the building at one side of the box, as shown.

The key for unlocking box B is pivoted to the first section or leaf of the screen, as illustrated more particularly in Fig. 4, andis provided with a projection, G, for manipulating from within the screen.

If desired, the screen may be folded into a depression in the wall prepared for its reception, and when the alarm-box is located upon (No mod e1.)

a pole or other support of like character th screen may be made to pass entirely around the box-support when the box is unlocked.

It will thus be seen that my improved device is admirably adapted to the uses and purposes for which it is intended, as the key is always kept at a known locality in close proximity to the box, and in case of fire no time is lost in bringing the box-key from a distance or in finding the custodian thereof, as at present, while at the same time indivduals will not be tempted to send out an alarm unless there is believed to be real occasion therefor.

\Vhen it is desired to send out an alarm,the sender stands closely in front of the box and pulls the screen around him until he can insert the key of the alarm-box into its lock. As soon as he has turned said key by means of its handle the door of the alarm-box opens,and he can send out the alarm in the usual manner. The act of unlocking the alarm-box secures the key in said lock in such a manner that it can only be turned from the exterior of the screen in order to remove it from the lock,and when once secured therein the sender of an alarm must remain until released by parties brought to the locality by the sounding of the alarm.

I lay no claim to any feature shown or disclosed in the patent to Kirby, No. 148,833.

Having now fully described my invention, what I claim as new therein, and desire to sccure by Letters Patent, is

1. Adevice for preventing false fire-alarms, consisting ofa folding screen secured to a building or other support for an alarm-box, in close proximity to said box, said screen bearing a key thereto, substantially as shown and de scribed.

2. A screen composed of leaves D, hinged together, as set forth, and bearing a key, F, roof or canopy O, and box B, the whole combined and arranged to operate substantially as shown and described.

Signed atGettysbnrg,in the county of Adams and State of Pennsylvania, this 4th day of Deccmber, A. D. 1883.

ED\VARD J UNGERMAN.

\Vitnesses Tnos. D. McCRnAnr, A. W. FLEMING, Jr. 

